Question

Question 6 of 10

What is the equation of a circle centered at the origin with radius 20?
OA. x³ + ³ = 400
OB. x³+y³ = 20
OC. x² + y² = 20
OD. x² + y² = 400

Answer 1

x^2 + y^2 = 400

Explanation:

the general equation of a circle is,

x^2 +y^2 = r^2

where x, y are the coordinates of the circle

r is the radius